A heavier amount of snow can fall along the western base of the Cascades.

Farther south, it will take a bit longer for snow to reach northwestern Oregon.

"The Portland, Oregon, area will likely get some snow from the storm late Sunday night into Monday morning with 1 to 2 inches possible, but more over the higher elevations surrounding the city," Duffey said.

The snow will be wet, slushy and difficult to remove.

Wet snow can cling to trees, causing limbs to sag and possibly break. Sporadic power outages can occur as a result.

Temperatures will rise enough during Monday midday and afternoon to allow any precipitation that falls to take the form of rain. The accumulated wet snow will melt as a result.

Another bout of snow and a wintry mix are likely in the Seattle and Portland areas for a time Tuesday night.